pr_4281.prdoc

title: "Add support for versioned notification for HRMP pallet"

doc:
  - audience: Runtime Dev
    description: |
      The configuration of the HRMP pallet has been expanded to include the `VersionWrapper` type,
      which controls the encoding of XCM notifications related to the opening/closing of HRMP channels.
      If your runtime does not concern itself with the XCM version used for notifications,
      you can set it as `type VersionWrapper = ()` to always use the latest XCM.
      If your runtime does care about the XCM version when sending to child parachains,
      you can provide an instance of the `pallet_xcm` with `type VersionWrapper = XcmPallet`,
      which can manage XCM versions for destinations.

crates:
- name: polkadot-runtime-parachains
  bump: major